//===----------------------------------------------------------------------===//
#include "PIC16TargetObjectFile.h"
-#include "PIC16ISelLowering.h"
#include "PIC16TargetMachine.h"
#include "PIC16Section.h"
#include "llvm/DerivedTypes.h"
PIC16TargetObjectFile::~PIC16TargetObjectFile() {
}
+/// Find a pic16 section. Return null if not found. Do not create one.
+PIC16Section *PIC16TargetObjectFile::
+findPIC16Section(const std::string &Name) const {
+ /// Return if we have an already existing one.
+ PIC16Section *Entry = SectionsByName[Name];
+ if (Entry)
+ return Entry;
+
+ return NULL;
+}
+
+
/// Find a pic16 section. If not found, create one.
PIC16Section *PIC16TargetObjectFile::
getPIC16Section(const std::string &Name, PIC16SectionType Ty,
case UDATA: UDATASections_.push_back(Entry); break;
case IDATA: IDATASections_.push_back(Entry); break;
case ROMDATA: ROMDATASection_ = Entry; break;
+ case UDATA_SHR: SHAREDUDATASection_ = Entry; break;
}
return Entry;
TM = &tm;
ROMDATASection_ = NULL;
+ SHAREDUDATASection_ = NULL;
}
/// allocateUDATA - Allocate a un-initialized global to an existing or new UDATA
const MCSection *
PIC16TargetObjectFile::allocateUDATA(const GlobalVariable *GV) const {
assert(GV->hasInitializer() && "This global doesn't need space");
- Constant *C = GV->getInitializer();
+ const Constant *C = GV->getInitializer();
assert(C->isNullValue() && "Unitialized globals has non-zero initializer");
// Find how much space this global needs.
const MCSection *
PIC16TargetObjectFile::allocateIDATA(const GlobalVariable *GV) const{
assert(GV->hasInitializer() && "This global doesn't need space");
- Constant *C = GV->getInitializer();
+ const Constant *C = GV->getInitializer();
assert(!C->isNullValue() && "initialized globals has zero initializer");
assert(GV->getType()->getAddressSpace() == PIC16ISD::RAM_SPACE &&
"can allocate initialized RAM data only");
std::string AddrStr = "Address=";
if (SectName.compare(0, AddrStr.length(), AddrStr) == 0) {
std::string SectAddr = SectName.substr(AddrStr.length());
- return allocateAtGivenAddress(GVar, SectAddr);
+ if (SectAddr.compare("NEAR") == 0)
+ return allocateSHARED(GVar, Mang);
+ else
+ return allocateAtGivenAddress(GVar, SectAddr);
}
// Create the section specified with section attribute.
return getPIC16DataSection(GV->getSection().c_str(), UDATA);
}
+const MCSection *
+PIC16TargetObjectFile::allocateSHARED(const GlobalVariable *GV,
+ Mangler *Mang) const {
+ // Make sure that this is an uninitialized global.
+ assert(GV->hasInitializer() && "This global doesn't need space");
+ if (!GV->getInitializer()->isNullValue()) {
+ // FIXME: Generate a warning in this case that near qualifier will be
+ // ignored.
+ return SelectSectionForGlobal(GV, SectionKind::getDataRel(), Mang, *TM);
+ }
+ std::string Name = PAN::getSharedUDataSectionName();
+
+ PIC16Section *SharedUDataSect = getPIC16DataSection(Name.c_str(), UDATA_SHR);
+ // Insert the GV into shared section.
+ SharedUDataSect->Items.push_back(GV);
+ return SharedUDataSect;
+}
+
+
// Interface used by AsmPrinter to get a code section for a function.
const PIC16Section *
-PIC16TargetObjectFile::SectionForCode(const std::string &FnName) const {
+PIC16TargetObjectFile::SectionForCode(const std::string &FnName,
+ bool isISR) const {
const std::string &sec_name = PAN::getCodeSectionName(FnName);
+ // If it is ISR, its code section starts at a specific address.
+ if (isISR)
+ return getPIC16Section(sec_name, CODE, PAN::getISRAddr());
return getPIC16Section(sec_name, CODE);
}